Humphrey offers you a variety of air piloted valves within the unique construction of the classic Diaphragm-Poppet Series. Choose diaphragm-poppet valves for your difficult, critical applications when reliability and tight sealing are required. The lineup is clustered with unique solutions born from challenges posed by our customers. These valves are simple, highly reliable and unaffected by a variety of media, and media conditions. Available as 2-, 3- and 4-way types in 1/8, 1/4, 1/2, and 3/4 PIPE sizes.